Oxygen Generator Technologies
Air contains 21% oxygen, 78% nitrogen, 0.9% argon, and 0.1% other gases.
Oxygen Generating Systems separate oxygen from compressed air through a unique Pressure Swing Adsorption (PSA) process.
The PSA process uses molecular sieve (a synthetic zeolite), which
attracts(adsorbs) nitrogen from air at high pressureand releases
(desorbs) it at low pressure.
Oxygen Generators System use two vessels filled with molecular sieve as adsorbers.
As compressed feed air flowsthrough one of the vessels, the
molecular sieve adsorbs nitrogen. The remaining oxygen passes through the
vessel and exits as the product gas.
Before the adsorber becomes saturated with nitrogen, the feed air is
diverted to the second vessel. At that point, the sieve in the first
vessel regenerates by desorbing the nitrogen through depressurization and
purging it with oxygen from the second vessel.
This process is then repeated in the second vessel to complete a cycle
that allows the oxygen generator to deliver a constant flow of product
oxygen at 90% minimum purity.
Under normal operating conditions, the molecular sieve is completely regenerative
and will last indefinitely.